28622874738 has 16 divisors (see below), whose sum is σ = 60613146720. Its totient is φ = 8979725376.

The previous prime is 28622874701. The next prime is 28622874769. The reversal of 28622874738 is 83747822682.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140308108 + ... + 140308311.

It is an arithmetic number, because the mean of its divisors is an integer number (3788321670).

Almost surely, 2^28622874738 is an apocalyptic number.

28622874738 is an abundant number, since it is smaller than the sum of its proper divisors (31990271982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28622874738 is a wasteful number, since it uses less digits than its factorization.

28622874738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280616441.

The product of its digits is 14450688, while the sum is 57.

The spelling of 28622874738 in words is "twenty-eight billion, six hundred twenty-two million, eight hundred seventy-four thousand, seven hundred thirty-eight".